How would you calculate the density of an object? A. divide it’s weight by its volume

B. multiply it’s weight times it’s mass

C. divide it’s mass by it’s volume

D. multiply it’s volume times it’s mass

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?